&lt;title&gt;New dispersion-resistant modulation format for fiber optic transmission&lt;/title&gt;

Wongpaibool, Virach; Shaw, J. K.; Jacobs, I.

doi:10.1117/12.475147

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“…Optical properties of polymers have been investigated since they are essential for many practical applications which include packaging, electronics, optical fiber, photonics, and the like . The design guidelines for one fiber optic system are often unsuitable for other systems where polymer material can play important role to influence the design of optical fiber.…”

Section: Resultsmentioning

confidence: 99%

“…But an optical fiber may not be absolutely ideal as it is influenced by two major properties like dispersion and nonlinearity in light wave communication technology. Different types of optical fibers have different dispersions and accordingly optical fibers are classified. Thus when one considers an optical fiber, the first parameter of interest is the evaluation of dispersion.…”

Section: Resultsmentioning

confidence: 99%

“…The optical conductivity ( σ ) is an important material property to study the electronic states in a material system. Optical conductivity is related with the basic energy band structure of the materials and mathematically expressed by the relation σ = αnc /4 π, where, α is absorption coefficient and n is refractive index and c is the velocity of light . Optical conductivity as a function of wavelength is shown in Fig.…”

Section: Resultsmentioning

confidence: 99%

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Microstructural and optical properties of polyvinyl alcohol/manganese chloride composite film

Banerjee

Jain²,

Mukherjee

2018

Polymer Composites

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Films of pure polyvinyl alcohol (PVA) and its manganese chloride filled polymer composite film (MPVA) were prepared and their optical properties were evaluated. XRD, UV-vis, and FTIR analyses reveal that there is strong interaction between polyvinyl alcohol and manganese chloride. Interchain separation (R) for pristine PVA and MPVA composite films was found as 5.60 and 4.69 Ǻ , respectively, thus showing polymer chains are more compact in MPVA. Optical band gap of polyvinyl alcohol was reduced on incorporation of manganese chloride in polyvinyl alcohol to cause approximately 2.5-fold increase in optical conductivity. Refractive index of MPVA was found to be higher than that of PVA in the visible range up to 710 nm but beyond that it became lower than that of PVA. Abbe Number was decreased on incorporation of manganese chloride to PVA with concomitant increase in dispersion energy. Urbach energy (E u ) for PVA and MPVA was found to be 0.70 and 0.82 eV, respectively. AFM study reveals formation of sunflower like assembled texture at nano-scale level in MPVA film and it exhibits a higher root mean square (RMS) roughness and absorbance than those of pristine PVA film. Average oscillation wavelength (λ 0 ) was found to be close to the respective absorption edge; and MPVA showed higher oscillation strength (S 0 ) than that of PVA. POLYM. COMPOS., 40:E765-E775, 2019.POLYMER COMPOSITES-2019 FIG. 1. XRD record of (a) PVA film and (b) MPVA film; Inset shows the XRD record of manganese chloride. E766 POLYMER COMPOSITES-2019 DOI 10.1002/pc FIG. 2. FTIR spectra of (a) pure PVA and (b) MPVA films. The magnified version of spectra in the box is shown at the top.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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